Question
What is the significance of the recently discovered
fossil, Megamonodontium mccluskyi, in Australia?Solution
Scientists have discovered the fossil of a large ‘trapdoor’ spider in Australia. This is the fourth giant spider fossil to be found in Australia, but it is not just another fossilised spider. This is the world’s first fossil that belongs to the large brush-footed trapdoor spider family, Barychelidae. This new species used to live in the Miocene 11 to 16 million years ago, and is officially named Megamonodontium mccluskyi. The findings were led by the Australian Museum (AM) and University of New South Wales (UNSW) paleontology Dr Matthew McCurry
A relation is in 2NF if:
Which of the following is a significant disadvantage of using a traditional file system compared to an RDBMS?
What does the ‘
What does re.sub(r'(\w+)', r'_\1_', 'hello world') return?
Which constraint ensures that no duplicate values exist in a column?
In relational algebra, the operation that combines tuples from two relations using common attribute values is:
Which of the following is a weak entity in a database?
Which of the following is NOT a type of database model?
Which of the following is true about ACID properties in DBMS?
Deadlock occurs when: